LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 153 



5. BE BELLI A Stainton 



Vertex and upper part of face with a large tuft of hair, smooth below; no ocelli; 

 antenna with an extremely large, massive pecten, practically an eye-cap; tongue 

 naked, weak; palpi small, hanging, appearing as if socketed in the face, as in the 

 Heliodines group; maxillary palpi absent. Hind tibiae with bristly hair. Fore 

 wing narrow-lanceolate (fig. 109), not decidedly caudate, cell narrow, in middle of 

 wing; four veins running from cell to costa and three (two in the Floridian 

 B. minor) to inner margin; A forked at base. Hind wing nearly linear, with 

 reduced obscure venation, and with very broad fringe. 



The larva lives in a light web on the under side of the leaf of Ipomoea. I have 

 not seen an adequate account of its structure, but it is less specialized than 

 in the Proleucoptera group. 



1. B. somnulentella Zeller. Dull light gray, sparsely and irregularly dusted 

 with fuscous. 11 mm. (staintonella Clemens). 



The moth has two broods, one occurring in August, and the second from mid- 

 September to spring. The larva may be found from July to September. 



This species is of general distribution in the northeast, and also occurs in 

 Europe. New York : New York City ( Lintner ) . 



6. PHYLLOCNISTIS Zeller 



Eye-cap variable in size, absent in P. insignis; no pecten; eyes small. Head 

 smooth, palpi rather well developed; hind tibiae with regular rows of long bristles. 

 Fore wing caudate (fig. 112), with smallish cell and no accessory cell; R, arising 

 well beyond middle of wing, R B running to apex; in some species all radials 

 present; A short, not forked. 



Feeding larva of the flat, Gracilariid type, with similar, very thin, blade-like 

 mandibles and with hardly recognizable free portions of labium and maxillae, but 

 entirely without legs. Last-stage larva cylindrical; with rudiments of legs; with 

 head practically reduced to a spinneret; not feeding. Mine serpentine, white or 

 pale green, often shining (snail-track mine) with or without central frass-line; 

 parenchyma not eaten, but only the sap. Pupa within the mine, in a partly 

 folded edge of the mine; of Gracilariid, rather than Lyonetid type; rather heavily 

 chitinized; antennae and hind legs extending well beyond end of wings; segments 

 4 to 6 of abdomen movable and 7 in male, 3 fixed; segments 3 to 7 with dorsal 

 pits near the anterior margin, and heavily chitinized setae; segments 8 to 10 com- 

 bined, shorter than 7. 



The moth occurs in May, July, September and October. 



The genus is as near the Gracilariidae as the Lyonetiidse, but is a little less out 

 of place in this already rather heterogeneous family. Several entomologists make 

 it the type of a separate family, Phyllocnistida;. Smilacisella, once put in this 

 genus, is a Marmara. 



Key to the species 



1. Ground color orange, larva on Composites 1. insignis. 



1. Ground color white. 



2. A longitudinal golden streak from base to middle, connecting with the first 



dorsal fascia; larva on Magnoliaceae. 



3. Streak partly edged with black 2. liriodendrella. 



3. Streak not at all edged with black 3. magnoliella. 



2. No such streak. 



3. Larva on sweet gum 8. liquidambarisella. 



3. Larva on poplar 4. populiella. 



